A while back I stumbled across a neat way to speed up the Acrobat load times. Basically when Acrobat loads, it also loads a bunch of other crap that it doesn't need and just slows down your computer. Here is how to speed it up:
1. Go to C:\Program Files\Adobe\Acrobat 6.0\Reader
2. Create a new folder called plug_ins_disabled.
3. Move all files from the plug_ins folder to the plug_ins_disabled folder
EXCEPT EWH32.api, printme.api, and search.api.
4. You're done.
More info here
http://forums.mozillazine.org/viewtopic.php?t=20055